Auth bypass in Nextcloud Global Site Selector
CVE-2024-22212
Nextcloud Global Site Selector is a tool which allows you to run multiple small Nextcloud instances and redirect users to the right server. A problem in the password verification method allows an attacker to authenticate as another user. It is recommended that the Nextcloud Global Site Selector is upgraded to version 1.4.1, 2.1.2, 2.3.4 or 2.4.5. There are no known workarounds for this issue.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Nextcloud Global Site Selector
- Nextcloud Security-Advisories — versions >= 1.1.0, < 1.4.1, >= 2.0.0, < 2.1.2, >= 2.2.0, < 2.3.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-vj5q-f63m-wp77 (Patch, Vendor Advisory)
- github.com/nextcloud/globalsiteselector/commit/ab5da57190d5bbc79079ce4109b6bccc… (Patch)
- hackerone.com/reports/2248689 (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2024-22212?
- CVE-2024-22212 is a critical-severity vulnerability in Nextcloud Global Site Selector, classified under Missing Authentication for Critical Function. CVSS score: 9.6/10. Published 2024-01-18.
- How severe is CVE-2024-22212?
- Critical severity. CVSS v3 base score is 9.6 out of 10.
- Is CVE-2024-22212 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.